Underneath my right dinette seat, there is what looks like the water pump and PVC piping. There are three shut-off valves on the PVC piping and I believe I have them all turned so that they are all horizontal... none perpendicular. My question is, is this right, and what do all these shut-off valves shut off or turn on? As I understand it, one of them is for the hot water, the other for the cold water, and the final one is for all the water. Am I correct? I'd like to mark them to tell me which is which and I'd also like to know what is the proper open and shut off for both in-use and winterization.
Are there any illustrated pictures on this site that show what these pipes are and how to set the valves?
Thanks.